First bytes of 2-byte sequences (0xc0-0xdf), each followed by a space character: � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 
First bytes of 3-byte sequences (0xe0-0xef), each followed by a space character: � � � � � � � � � � � � � � � � 
First bytes of 4-byte sequences (0xf0-0xf4), each followed by a space character: � � � � � 
